Reusable J1939 stack :

Embitel has developed a reusable software stack and boot loader, which is in compliance with SAE J1939 standard. This stack is implemented in ANSI-C and is independent of the CAN controller, CPU and operating system. It can be readily adapted for any automotive control unit and tooling applications.

Key Highlights:

Support for boot loader – A solution for reprogramming ECUs quickly, efficiently and securely via CAN network.

Integration of Stacks:

Embitel already integrated the stack into two applications:

Android based IVI platform –J1939 stack helps the IVI platform to fetch vehicle parameters and diagnostics and diagnostics information to be displayed in the LCD screen. The stack is integrated with Linux/Android operating system, and around 50 PGNs are configured.

Electronic Power Steering system –Complete stack is integrated with power steering system for supporting vehicle communication, reprogramming, diagnostics and fault code memory. An overview of the system is shown below:

The J1939 stack further strengthens our library of reusable stacks in the area of vehicle networking and diagnostics. The list of reusable stacks includes:

J1939 stack

ISO14230 – KWP2000

ISO14229 – UDS

ISO15765 – CANTP

ISO15031 – OBD services

CAN Driver

LIN Driver and LIN based diagnostics

Boot loaders based on above protocols

Fault code memory based on OBD, J1939 requirements

These stacks improve our ability to meet the triple constraints of –Cost, Schedule and Quality.